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https://issues.apache.org/jira/browse/HBASE-9086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13723813#comment-13723813
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Jean-Marc Spaggiari commented on HBASE-9086:
--------------------------------------------
What you are looking for is to replace
{code}
scan.setFilter(new FirstKeyOnlyFilter());
{code}
by
{code}
scan.setFilter(new KeyOnlyFilter());
{code}
This need to be done in 2 places in 0.94 and only one in trunk.
Might be good to have an option to specify which filter you want to use.
> Add some options to improve count performance
> ---------------------------------------------
>
> Key: HBASE-9086
> URL: https://issues.apache.org/jira/browse/HBASE-9086
> Project: HBase
> Issue Type: Wish
> Components: shell
> Affects Versions: 0.94.2
> Reporter: Cheney Sun
>
> The current count command in HBase shell is quite slow if the row size is
> very big (100+kB each). It would be helpful to provide some option to specify
> the column to count, which could give user a chance to reduce the data volume
> to scan.
> IMHO, only count the row key would be the ideal solution. Not sure how
> difficult to implement it.
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